Vercel AI Playground
Free web playground for comparing dozens of AI language models side by side, including their context windows and per-token API pricing.
What it does
The Vercel AI Playground lets users try and compare many AI language models from different providers (such as Alibaba's Qwen models) in one interface, showing details like context window size and per-million-token input/output costs pulled from each provider. It links into Vercel's broader AI Gateway product for routing and history.
Core features
Side-by-side comparison of multiple providers' language models
Adjustable generation parameters like temperature, max length, and penalties
Displayed per-model context window size and token pricing
Tags indicating model capabilities such as tool-use or reasoning
Integration with Vercel's AI Gateway and gateway request history
Best for
→Developers evaluating which model fits their cost/quality needs before integrating an API
→Teams comparing reasoning or tool-use capabilities across providers
→Quick prompt testing across models without separate provider accounts
Reviews
Big-picture takes: what it's for and whether it delivers. High-engagement YouTube videos — not sponsored.
Tutorials
Step-by-step: exactly how to get things done with it.